CVE-2020-3405 Cisco SD-WAN vManage Software XML External Entity Vulnerability

Medium 6.5 Published Updated

Authenticated attackers can read and write files via XXE in Cisco SD-WAN vManage by tricking users into importing malicious XML.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-3405?

CVE-2020-3405 is a medium-severity vulnerability in Cisco SD-WAN vManage, published on 16 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected system. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by persuading a user to import a crafted XML file with malicious entries. A successful exploit could allow the attacker to read and write files within the affected application.

Weakness: CWE-611

Which versions are affected by CVE-2020-3405?

It affects 1 product.

Products include Cisco Sd-Wan Firmware.

How do I fix CVE-2020-3405?

No fix has been published for CVE-2020-3405 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-3405 being exploited?

There is no known exploitation of CVE-2020-3405 in the wild and no public exploit code.

Sources

Also known as GHSA-v7ff-8293-rf9q.

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